code: def pipeline(self):
      return stanza.Pipeline(dir=TEST_MODELS_DIR)
  
imports: import pytest
  import stanza
  from stanza.utils.conll import CoNLL
  from stanza.models.common.doc import Document
  from stanza.tests import *
  from stanza.tests.pipeline.pipeline_device_tests import check_on_gpu, check_on_cpu
label_desc: Use image node_id 1 for calling the TestEnglishPipeline obj's underlying member method code with example usage: obj.pipeline() and returns: stanza